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Question
Chemistry
Posted 10 months ago

Which of the following is the strongest acid?
CH3CH2OH\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}
CH3OCH3\mathrm{CH}_{3} \mathrm{OCH}_{3}
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Answer from Sia
Posted 10 months ago
Solution
1
Identify the compounds: The question lists five compounds with their molecular formulas and asks to identify the strongest acid among them
2
Analyze acid strength: Acid strength is determined by the stability of the conjugate base formed after the acid donates a proton (H⁺). The more stable the conjugate base, the stronger the acid
3
Compare functional groups: Among the given compounds, alcohols, ethers, aldehydes, and ketones are generally weak acids. Carboxylic acids, however, are known to be stronger acids due to resonance stabilization of their conjugate base
4
Identify the strongest acid: The compound CH3COOH \mathrm{CH}_3\mathrm{COOH} (acetic acid) is the only carboxylic acid in the list, which is known to be a stronger acid than alcohols, ethers, aldehydes, and ketones
Answer
CH3COOH \mathrm{CH}_3\mathrm{COOH} (acetic acid) is the strongest acid.
Key Concept
Acid strength comparison
Explanation
The strongest acid among the given compounds is acetic acid because its conjugate base is resonance stabilized, making it more likely to donate a proton compared to the other functional groups listed.

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